Display login dialog box on all screens, or enable just one screen
@jfft
Submitted by Jean-François Fortin Tam Link to original bug (#649373)
Description
On my desktop computer, I have two DVI ports, one of which is plugged into a regular LCD monitor and the other is plugged into a HDTV.
The problem is that, even if the external (HDTV) screen is turned off (doesn't seem to be specific to this screen), GDM will try to use it as a primary screen to display the login dialog; my actual computer screen that is turned on will only see the wallpaper.
And so you have to "guess" that you need to turn on the 2nd screen to see the actual login screen.
The big question: is there a way for gdm to distinguish between a connected vs "connected AND turned on" screen?
Version: 2.91.x